/**
 * #      121
 * 名称   买卖股票的最佳时机
 * 链接   https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock
 * 题解   [2510](https://leetcode-cn.com/problems/best-time-to-buy-and-sell-stock/solution)
 * 通过率 56.5%
 * 难道   简单
 */

